diff --git a/libpar2.spec b/libpar2.spec
index bf33f2a..93a57ac 100644
--- a/libpar2.spec
+++ b/libpar2.spec
@@ -1,6 +1,6 @@
 Name: libpar2
 Version: 0.2       
-Release: 5%{?dist}
+Release: 6%{?dist}
 Summary: Library for performing comman tasks related to PAR recovery sets
      
 Group: System Environment/Libraries
@@ -23,6 +23,7 @@ sets and is the basis for GUI applications such as GPar2.
 Summary: Development files for %{name}
 Group: Development/Libraries
 Requires: %{name} = %{version}-%{release}
+Requires: libsigc++20-devel
 
 %description devel
 The %{name}-devel package contains libraries and header files for
@@ -75,6 +76,9 @@ rm -rf $RPM_BUILD_ROOT
 %{_libdir}/%{name}/include/
 
 %changelog
+* Sat Jun 21 2008 Adel Gadllah <adel.gadllah@gmail.com> 0.2-6
+- Add missing requires to devel package (RH #452363)
+
 * Sat Feb 09 2008 Adel Gadllah <adel.gadllah@gmail.com> 0.2-5
 - Rebuild for gcc-4.3